{"product_id":"gryphon-rbp-gm40-replacement-battery-37v-3400mah-li-ion","title":"Gryphon RBP-GM40 Compatible Battery 3.7V 3400mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eGryphon GM4100 \/ RBP-GM40 — 3.7V Li-ion Replacement Battery (128000894)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 3400mAh Li-ion battery replacing OEM part 128000894 in the Gryphon GM4100 and RBP-GM40 handheld barcode scanners. These scanners are used in retail, warehousing, and logistics environments where a dead battery stalls pick-and-pack or receiving operations. Cell dimensions are 68.70 × 18.40 × 18.40mm — same as the original pack.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eGM4100 and RBP-GM40 compatibility:\u003c\/strong\u003e\n    Both models share the same 3.7V battery bay, connector pinout, and BMS handshake protocol. One pack covers both units without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through charge and discharge on the GM4100 platform. The BMS reported correct state-of-charge, and the scan trigger and wireless radio drew current cleanly without tripping the protection circuit.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-shift preparation:\u003c\/strong\u003e\n    After installing, place the scanner in its cradle for a full charge cycle before use. Scan trigger inrush current is highest when the cell is near minimum — a fully charged cell prevents false BMS trips during the first shift in a high-frequency scan environment.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCradle showing a charging error on a new pack\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eCharging docks on the GM4100 communicate with the battery over a contact array on the base of the unit. If those contacts have oxidation or debris from warehouse use, the dock reads a high-resistance connection and flags a charge fault rather than starting a charge cycle. This is not a faulty battery. Wipe the gold contacts on both the battery and the dock with a dry cloth, reseat the scanner firmly, and the charge indicator should switch to active within 30 seconds.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eScanner dropping wireless connection during rapid scan bursts\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe GM4100 runs its wireless radio and imager from the same cell simultaneously. During a fast scan burst, the combined current draw from the radio transmit pulse and the imager illumination can cause a brief voltage sag. If the cell voltage dips below approximately 3.2V under that load, the BMS may throttle output or momentarily drop the wireless session. A fully charged replacement cell at 3.7V nominal provides the headroom needed to sustain both loads. If drop-outs continue after a full charge, check that the wireless polling interval in your host software is not set to continuous — increasing it to 100ms reduces the concurrent draw spike.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43324851617882,"sku":"BWCS-GM410BX-1","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43324851650650,"sku":"BWCS-GM410BX-2","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43324851683418,"sku":"BWCS-GM410BX-3","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-GM410BX-1.webp?v=1778123165","url":"https:\/\/batteryweb.com\/products\/gryphon-rbp-gm40-replacement-battery-37v-3400mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}